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  • Designed for high load applications. Countersunk feature allow fastener to be installed flush with sheet surface.
  • Both UNC and UNF threads available in No. 10 and larger thread sizes. Check for availability of other grip ranges and designs.
Unit of Measure

Specifications

Thread Size

N/A 5/16-18

Grip Range

N/A .106 - .181 in

Identification Mark

N/A Blank

B Ref.

N/A .656 in a1058_1.jpg

C Max.

N/A .104 in

øD + .000 - .004

N/A .413 in

E Max.

N/A .505 in

F + .005 -.000

N/A .120 in
L ± .0151 N/A 1.218 in

K Ref.

N/A .540 in

P - Keyway Width + .003 -.000

N/A .128 in

H - Keyway Height

N/A .097 - .102 in

Install Drill Size Ref.

N/A Z

Install Hole Size Min.

N/A .413 in

Install Hole Size Max.

N/A .423 in

Pull Up Factor

N/A .120 in

Weight per 1000

N/A 27.5 lb

Fastening

N/A Uninstalled

Thread Specification

N/A 3B per ASME B1.1

Standard Material

N/A Low Carbon Steel

Standard Finish

N/A Cadmium Plate - .0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II

CAD Supplier

N/A PennEngineering® (Atlas®)

Inventory

N/A {0}
  • 1 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”